KVM: remove kvm_arch_cpu_check_are_resettable
Board reset requires writing a fresh CPU state. As far as KVM is
concerned, the only thing that blocks reset is that CPU state is
encrypted; therefore, kvm_cpus_are_resettable() can simply check
if that is the case.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c
index f5ac643..94c828a 100644
--- a/accel/kvm/kvm-accel-ops.c
+++ b/accel/kvm/kvm-accel-ops.c
@@ -82,7 +82,7 @@
static bool kvm_cpus_are_resettable(void)
{
- return !kvm_enabled() || kvm_cpu_check_are_resettable();
+ return !kvm_enabled() || !kvm_state->guest_state_protected;
}
#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d6ebadb..5a2fbee 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -2696,11 +2696,6 @@
s->coalesced_flush_in_progress = false;
}
-bool kvm_cpu_check_are_resettable(void)
-{
- return kvm_arch_cpu_check_are_resettable();
-}
-
static void do_kvm_cpu_synchronize_state(CPUState *cpu, run_on_cpu_data arg)
{
if (!cpu->vcpu_dirty && !kvm_state->guest_state_protected) {
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 14b1ddb..bd247f3 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -525,16 +525,6 @@
/* Notify resamplefd for EOI of specific interrupts. */
void kvm_resample_fd_notify(int gsi);
-/**
- * kvm_cpu_check_are_resettable - return whether CPUs can be reset
- *
- * Returns: true: CPUs are resettable
- * false: CPUs are not resettable
- */
-bool kvm_cpu_check_are_resettable(void);
-
-bool kvm_arch_cpu_check_are_resettable(void);
-
bool kvm_dirty_ring_enabled(void);
uint32_t kvm_dirty_ring_size(void);
diff --git a/target/arm/kvm.c b/target/arm/kvm.c
index ab85d62..21ebbf3 100644
--- a/target/arm/kvm.c
+++ b/target/arm/kvm.c
@@ -1598,11 +1598,6 @@
return (data - 32) & 0xffff;
}
-bool kvm_arch_cpu_check_are_resettable(void)
-{
- return true;
-}
-
static void kvm_arch_get_eager_split_size(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index c64b956..c8fdab4 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -5619,11 +5619,6 @@
return has_msr_umwait;
}
-bool kvm_arch_cpu_check_are_resettable(void)
-{
- return !sev_es_enabled();
-}
-
#define ARCH_REQ_XCOMP_GUEST_PERM 0x1025
void kvm_request_xsave_components(X86CPU *cpu, uint64_t mask)
diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c
index d630cc3..8224d94 100644
--- a/target/loongarch/kvm/kvm.c
+++ b/target/loongarch/kvm/kvm.c
@@ -733,11 +733,6 @@
return true;
}
-bool kvm_arch_cpu_check_are_resettable(void)
-{
- return true;
-}
-
int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
{
int ret = 0;
diff --git a/target/mips/kvm.c b/target/mips/kvm.c
index 6c52e59..a631ab5 100644
--- a/target/mips/kvm.c
+++ b/target/mips/kvm.c
@@ -1273,11 +1273,6 @@
return -1;
}
-bool kvm_arch_cpu_check_are_resettable(void)
-{
- return true;
-}
-
void kvm_arch_accel_class_init(ObjectClass *oc)
{
}
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index 8231feb..63930d4 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -2956,11 +2956,6 @@
}
}
-bool kvm_arch_cpu_check_are_resettable(void)
-{
- return true;
-}
-
void kvm_arch_accel_class_init(ObjectClass *oc)
{
}
diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c
index 6a6c6ca..49d2f3a 100644
--- a/target/riscv/kvm/kvm-cpu.c
+++ b/target/riscv/kvm/kvm-cpu.c
@@ -1475,11 +1475,6 @@
}
}
-bool kvm_arch_cpu_check_are_resettable(void)
-{
- return true;
-}
-
static int aia_mode;
static const char *kvm_aia_mode_str(uint64_t mode)
diff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c
index 4ce809c..4dcd757 100644
--- a/target/s390x/kvm/kvm.c
+++ b/target/s390x/kvm/kvm.c
@@ -2622,11 +2622,6 @@
kvm_s390_vcpu_interrupt(cpu, &irq);
}
-bool kvm_arch_cpu_check_are_resettable(void)
-{
- return true;
-}
-
int kvm_s390_get_zpci_op(void)
{
return cap_zpci_op;
